640415865

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{311}}^1\times {\mathrm{1283}}^1$

素因数の和:1709

約数の個数: 32

約数和(自身を含む): 1038375936

約数和(自身を除く): 397960071

約数列:

[1, 3, 5, 15, 107, 311, 321, 535, 933, 1283, 1555, 1605, 3849, 4665, 6415, 19245, 33277, 99831, 137281, 166385, 399013, 411843, 499155, 686405, 1197039, 1995065, 2059215, 5985195, 42694391, 128083173, 213471955, 640415865]

約数ペア:

[(1, 640415865), (3, 213471955), (5, 128083173), (15, 42694391), (107, 5985195), (311, 2059215), (321, 1995065), (535, 1197039), (933, 686405), (1283, 499155), (1555, 411843), (1605, 399013), (3849, 166385), (4665, 137281), (6415, 99831), (19245, 33277)]